src/qt3support/text/q3syntaxhighlighter_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/qt3support/text/q3syntaxhighlighter_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef Q3SYNTAXHIGHLIGHTER_P_H
+#define Q3SYNTAXHIGHLIGHTER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QT_NO_SYNTAXHIGHLIGHTER
+#include "q3syntaxhighlighter.h"
+#include "private/q3richtext_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q3SyntaxHighlighterPrivate
+{
+public:
+    Q3SyntaxHighlighterPrivate() :
+        currentParagraph(-1)
+        {}
+
+    int currentParagraph;
+};
+
+class Q3SyntaxHighlighterInternal : public Q3TextPreProcessor
+{
+public:
+    Q3SyntaxHighlighterInternal(Q3SyntaxHighlighter *h) : highlighter(h) {}
+    void process(Q3TextDocument *doc, Q3TextParagraph *p, int, bool invalidate) {
+        if (p->prev() && p->prev()->endState() == -1)
+            process(doc, p->prev(), 0, false);
+
+        highlighter->para = p;
+        QString text = p->string()->toString();
+        int endState = p->prev() ? p->prev()->endState() : -2;
+        int oldEndState = p->endState();
+        highlighter->d->currentParagraph = p->paragId();
+        p->setEndState(highlighter->highlightParagraph(text, endState));
+        highlighter->d->currentParagraph = -1;
+        highlighter->para = 0;
+
+        p->setFirstPreProcess(false);
+        Q3TextParagraph *op = p;
+        p = p->next();
+        if ((!!oldEndState || !!op->endState()) && oldEndState != op->endState() &&
+             invalidate && p && !p->firstPreProcess() && p->endState() != -1) {
+            while (p) {
+                if (p->endState() == -1)
+                    return;
+                p->setEndState(-1);
+                p = p->next();
+            }
+        }
+    }
+    Q3TextFormat *format(int) { return 0; }
+
+private:
+    Q3SyntaxHighlighter *highlighter;
+
+    friend class Q3TextEdit;
+};
+
+#endif // QT_NO_SYNTAXHIGHLIGHTER
+
+QT_END_NAMESPACE
+
+#endif // Q3SYNTAXHIGHLIGHTER_P_H